M19s vs A7x

[Altec Best]

Not to belabor the point, but the looking around I did when I got my first pair of 816s suggested that the idea of stacking 816s or other similar horn cabinets allowed for lower bass extension through some sort of "sonic linking". The more you stacked, the lower they'd go. Can anyone elaborate further on this principle?

Alan scroll down to "Multiple Subwoofers" this should give you a better understanding.. Actually the whole post by Big Daddy "The Science Behind Subwoofer Placement" is interesting with lots of good info..

A Guide to Subwoofers (Part II): Standing Waves & Room Modes - Blu-ray Forum

Here's part 1 if you would like to read that as well.

"A Guide To Subwoofers" http://forum.blu-ray.com/showthread.php?t=43669

Bill Fitzmaurice is a friend of mine.He frequents the Tech Talk forum quite a bit.He did this post on his website that illustrates Stacking & Placement of Subs..

http://billfitzmaurice.info/forum/viewtopic.php?t=398